prysm-pulse/sharding/mainchain/utils.go
Preston Van Loon 68eba02cc2 Remove most of the remaining geth code and set up bazel (#235)
* Remove most of the remaining geth code and set up bazel for this

* chmod +x

* Add flake check

* better flake detection


Former-commit-id: 5c332ecbf2923943f646f1fe40befa95be883329 [formerly 99590fc354514584700e5ce8d7d30a8a7d541f29]
Former-commit-id: e5f919b553fe698e98090965d34eb721990b5693
2018-07-07 13:23:19 -04:00

61 lines
1.9 KiB
Go

package mainchain
import (
"context"
"fmt"
"math/big"
"time"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/node"
"github.com/ethereum/go-ethereum/rpc"
"github.com/prysmaticlabs/geth-sharding/sharding/contracts"
"github.com/prysmaticlabs/geth-sharding/sharding/params"
)
// dialRPC endpoint to node.
func dialRPC(endpoint string) (*rpc.Client, error) {
if endpoint == "" {
endpoint = node.DefaultIPCEndpoint(ClientIdentifier)
}
return rpc.Dial(endpoint)
}
// initSMC initializes the sharding manager contract bindings.
// If the SMC does not exist, it will be deployed.
func initSMC(s *SMCClient) (*contracts.SMC, error) {
b, err := s.client.CodeAt(context.Background(), params.DefaultConfig.SMCAddress, nil)
if err != nil {
return nil, fmt.Errorf("unable to get contract code at %s: %v", params.DefaultConfig.SMCAddress.Hex(), err)
}
// Deploy SMC for development only.
// TODO: Separate contract deployment from the sharding node. It would only need to be deployed
// once on the mainnet, so this code would not need to ship with the node.
if len(b) == 0 {
log.Info(fmt.Sprintf("No sharding manager contract found at %s. Deploying new contract.", params.DefaultConfig.SMCAddress.Hex()))
txOps, err := s.CreateTXOpts(big.NewInt(0))
if err != nil {
return nil, fmt.Errorf("unable to initiate the transaction: %v", err)
}
addr, tx, contract, err := contracts.DeploySMC(txOps, s.client)
if err != nil {
return nil, fmt.Errorf("unable to deploy sharding manager contract: %v", err)
}
for pending := true; pending; _, pending, err = s.client.TransactionByHash(context.Background(), tx.Hash()) {
if err != nil {
return nil, fmt.Errorf("unable to get transaction by hash: %v", err)
}
time.Sleep(1 * time.Second)
}
log.Info(fmt.Sprintf("New contract deployed at %s", addr.Hex()))
return contract, nil
}
return contracts.NewSMC(params.DefaultConfig.SMCAddress, s.client)
}